Bent Flyvbjerg is a professor at Oxford University, an economist, and 'the world's leading megaproject expert', according to global accounting network KPMG. He has consulted on over one hundred projects costing $1 billion or more and has been knighted by the Queen of Denmark.
Dan Gardner is a journalist and the New York Times bestselling author of Risk, Future Babble and Superforecasting (with Philip E. Tetlock).
Together they have written How Big Things Get Done.